Umnyango wesivalo somlilo ungumkhiqizo kagesi. Ukusebenza kwansuku zonke kulula kakhulu. Cindezela izinkinobho ezithi phezulu, phansi nezimisa ebhokisini lokulawula ukuze ulawule ukusebenza kwaphezulu naphansi komnyango wesivalo somlilo. Uma isignali ye-alamu yomlilo isitholiwe, isivalo se-fire shutter sizokwehla ngokushesha ukuvimbela umlilo ukuthi ungasakazeki endaweni yomlilo eseduze, futhi udlale indima yokuhlukanisa nokuvimbela ukusabalala.

Iminyango yomlilo ye-ZHTdoors, iminyaka engu-31 yesipiliyoni sokukhiqiza eminyango yomlilo kanye neWindows. Iminyango yomlilo eyinhloko ye-UL, iminyango yomlilo ye-EN, iminyango yomlilo ye-BS EN, njll., Sine-certification.ZHTdoors isekela i-OEM kanye ne-design yamahhala.Izinzuzo zethu: ikhwalithi enhle, intengo yefekthri, isevisi enhle.Siyakwamukela ukuthi uxhumane nathi.